The user verification platform took its total funding to $119m with a Workday-backed round that valued it at $1.17bn post money.

US-based authentication services provider Duo Security secured $70m in series D capital on Wednesday from investors including human resources software producer Workday.

The round was co-led by Meritech Capital Partners and Lead Edge Capital, with further participation from Geodesic Capital, Index Ventures, Redpoint Ventures and True Ventures. It valued Duo Security at $1.17bn post-money.

Duo Security has created a cloud-based user verification platform that uses two-factor authentication to confirm a user’s identity before allowing them to log in to a…